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Z-Palatoplasty (ZPP): a Technique for Patients Without Tonsils

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Z-Palatoplasty (ZPP): a Technique for Patients Without Tonsils Z-palatoplasty (ZPP): A technique for patients without tonsils MICHAEL FRIEDMAN, MD, HANI Z. IBRAHIM, MD, RAMAKRISHNAN VIDYASAGAR, MBBS, MS, JONATHAN POMERANZ, BS, and NINOS J. JOSEPH, BS, Chicago, Illinois OBJECTIVE: Patients without tonsils and with Fried- In view of its limited success in curing OSAHS,1-3 man tongue position (FTP) III and IV are poor can- many adjunctive procedures have been proposed or didates for uvulopalatopharyngoplasty (UP3). Even performed concurrently or sequentially.3-5 The UP3 when combined with adjunctive hyopharyngeal technique was originally described by Fujito et al6 in techniques, results are poor. We assessed a modi- 1979, and, although many modifications have been fied uvulopalatoplasty based on a bilateral Z-plasty published, the basic procedure involves palate shorten- in treating patients without tonsils who have ob- ing with closure of the mucosal incisions, hence en- structive sleep apnea/hypopnea syndrome (OS- compassing “palatoplasty” component; classical tonsil- AHS). lectomy and pharyngeal closure comprise the METHODS: 25 patients treated with a modified tech- “pharyngoplasty” component of the procedure.7-9 nique were matched with 25 patients previously Several problems continue to exist: (1) No proce- treated with classic UP3. All patients in both groups dure has been studied for post-tonsillectomy patients. also had radiofrequency tongue base reduction. (2) Many patients, especially post-tonsillectomy pa- Preoperative vs. postoperative measures of objec- tients, end up with an extremely narrow palatal arch tive treatment success and subjective symptoms further contributing to airway obstruction. (3) Post- were compared for the 2 groups. Morbidity, includ- tonsillectomy patients have poor results with classical ing pain levels, narcotic use, and return to solid diet UP3.10,11 (4) A significant number of patients are not and normal activity, as well as complications were improved by UP3 but are actually made worse.2 studied. Patients who have had a previous tonsillectomy have RESULTS: Subjective improvement was good for an altered palatal anatomy that requires specialized both groups, but objective clinical improvement treatment. Often in these patients, the posterior tonsillar was significantly better for the experimental group. pillars have been resected or are scarred and the palate Morbidity and complications for the experimental is pulled closer to the posterior pharyngeal wall. In an group were comparable to the control group and effort to achieve maximal airway enlargement in 3 to other published series on UP3. areas, a new modified palatoplasty was developed. The CONCLUSIONS: A modified technique for patients goal was to widen the space between the palate and the without tonsils who have OSAHS is presented. The postpharyngeal wall, between the palate and tongue new technique is more successful with acceptable base and to maintain or widen the lateral dimensions of morbidity for patients with OSAHS than classical the pharynx. The new technique will be described and techniques. (Otolaryngol Head Neck Surg 2004; essentially represents a double Z-plasty to change the 131:89-100.) scar contracture tension line to an anterolateral vector and to widen the anteroposterior and lateral oropharyn- Uvulopalatopharyngoplasty (UP3) remains the most geal air spaces at the level of the palate, hence the term common surgical procedure performed as treatment for Z-palatoplasty (ZPP). obstructive sleep apnea/hypopnea syndrome (OSAHS). This retrospective/prospective study was designed to assess the safety and efficiency of this new procedure on 30 patients seeking surgical treatment for OSAHS From the Department of Otolaryngology and Bronchoesophagology, Rush– and compare these results to a matched group of pa- Presbyterian-St. Luke’s Medical Center (Drs Friedman, Ibrahim, Vidyasa- gar, and Pomeranz), and Division of Otolaryngology, Advocate Illinois tients who previously underwent classical UP3. Of Masonic Medical Center (Drs Friedman, Ibrahim, Vidyasagar, and Joseph). these 30 patients, 25 completed the study with a min- Presented at the Annual Meeting of American Academy Otolaryngology–Head imum of 6 months of follow-up. and Neck Surgery, Orlando, FL, September 21-24, 2003. Reprint requests: Michael Friedman, MD, Department of Otolaryngology and Bronchoesophagology, Rush–Presbyterian-St. Luke’s Medical Center, 1653 MATERIALS AND METHODS West Congress Parkway, Chicago, IL 60612-3833; e-mail, njoseph@ Institutional review board approval for the study pentechassociates.com. protocol and appropriate informed consents were ob- 0194-5998/$30.00 Copyright © 2004 by the American Academy of Otolaryngology–Head and tained from 30 patients without tonsils and positive Neck Surgery Foundation, Inc. history, physical examination, and conclusive polysom- doi:10.1016/j.otohns.2004.02.051 nographic evidence of OSAHS. 89 Downloaded from oto.sagepub.com at RUSH UNIV on October 2, 2015 Otolaryngology– Head and Neck Surgery 90 FRIEDMAN et al July 2004 Thirty patients who were deemed surgical candi- Table 1. Friedman staging system based on dates and fitting the inclusion criteria were invited to Friedman tongue position, tonsil size, and body participate in the prospective (experimental) arm of mass index (BMI) the study and were scheduled to undergo a ZPP Friedman tongue Tonsil procedure. Prior to 2002, surgical treatment for pa- position size BMI tients with OSAHS consisted of UP3. A chart review Ͻ identified a matching set of 25 patients previously Stage I 1 3, 4 40 23,4Ͻ40 treated with standard UP3 with minimum 6-month follow-up. These 25 patients represented the retrospec- tive (control) arm of the study. All the patients in both groups underwent adjunctive tongue base reduction by radiofrequency (TBRF) to address the hyopharyngeal narrowing. Stage II 1, 2 0, 1, 2 Ͻ40 3, 4 3, 4 Ͻ40 Inclusion Criteria Stage III 3 0, 1, 2 Ͻ40 All prospective patients who underwent surgical 4 0,1,2 Ͻ40 treatment of OSAHS had fulfilled previously reported criteria by the authors.10,11 In addition, selection crite- ria for the present study included: (1) no previous surgical treatment for OSAHS; (2) significant symp- toms of snoring and/or daytime somnolence; (3) docu- Ͼ mented failure of continuous positive airway pressure Stage IV 1, 2, 3, 4 0, 1, 2, 3, 4 40 All patients with significant craniofacial or other trial; (4) documented failure of attempts at conservative anatomic deformities measures, such dental appliances when appropriate, change in sleeping position, and sleep hygiene; (5) From: Friedman M, Ibrahim I, Joseph NJ. Staging of obstructive sleep apnea/ hypopnea syndrome: A guide to appropriate treatment. Laryngoscope (In patient without tonsils or had underwent prior tonsil- Press). lectomy; (6) Friedman OSA stages II or III;10,11 (7) the appearance of obstruction at the level of the soft palate contributing to OSAHS (fiberoptic hypolaryngoscopy and Mu¨ller maneuver was performed on all patients); Physical Examination Parameters (8) proof of medical fitness adequate for surgery; and Patients underwent preoperative physical examina- (9) a clear understanding and expectations of the risks, tions included a full assessment of the upper airway morbidity, and likely outcomes of surgery. with nasopharyngolaryngoscopy, Mueller maneuver, and standard examination. In addition, patients were Preoperative Subjective and Quality-of-Life staged according to the previously described Friedman Evaluation staging system,11 based on the Friedman tongue posi- Candidates for surgical treatment of OSAHS were tion (FTP, formerly the Friedman palate position), ton- evaluated based on history. Patient histories included sil size, and body mass index (BMI) (Table 1). Weight assessments of snoring level (0-10) described by the and height were recorded at the initial visit and the BMI bed partner, Epworth Sleepiness Scale (0-24),12 and the (kg/m2) was calculated. Although originally named SF-36 v2 Quality-of-Life (QOL) score (0-100). The Friedman palate position (FPP), the term has been SF-36௡ v2 Health Survey (QualityMetric, Lincoln, RI) corrected and called Friedman tongue position (FTP) is a 36-item well-documented survey that has previ- because the observation that describes the palate/tongue ously been used to evaluate patients with obstructive relationship is, in fact, predictive of the tongue position sleep apnea. The survey consists of 8 multiitem health as it impacts the airway. domains: (1) physical functioning (PF); (2) role limita- Stage I disease was defined as those patients with tion as a result of physical health problems (RP); (3) FTP I or II, tonsil size 3 or 4, and BMI of less than 40 bodily pain (BP); (4) general health (GH); (5) vitality kg/m2 (Table 1). Stage II disease is defined as FTP I or (energy/fatigue) (VT); (6) social functioning (SF); (7) II and tonsil sizes 0, 1, or 2, or FTP III and IV with role limitation as a result of emotional problems (RE); tonsil sizes 3 or 4 and BMI of less than 40 kg/m2. Stage and (8) mental health (psychological distress and psy- III disease is defined as FTP III or IV, tonsil sizes 0, 1, chological well-being) (MH). A score of 0 to 100 is or 2, and BMI less than 40 kg/m2. All patients with a calculated for each domain based on patient responses. BMI greater than 40 kg/m2, regardless of FTP or tonsil A score of 100 represents the best possible health. size, as well as those patients with significant cranio- Downloaded from oto.sagepub.com at RUSH UNIV on October 2, 2015 Otolaryngology– Head and Neck Surgery Volume 131 Number 1 FRIEDMAN et al 91 tion, the lateral dimension of the palate is usually doubled to approximately 4 cm. The exact dimensions of the flaps that extend in a butterfly pattern are illus- trated in Figure 7. The anterior midline margin of the flap is halfway between the hard palate and the free edge of the soft palate. The distal margin is the free edge of the palate and uvula. The lateral extent is posterior to the midline and all the way the lateral extent of the palate.
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